Toshiba TDP-TW300U Service Manual page 40

Troubleshooting Remote Controller Problems
Infrared remote controller problem.
Install known good batteries in the remote controller.
Does the remote controller work?
Use a known good remote controller with the projector.
Does the remote controller work?
Replace the Main board.
Troubleshooting Keypad Problems
Keypad does not
respond to key pressed.
Is a known good Key B.
available for substitution?
No
Substitute the good Key board.
Does the projector
respond to the key pressed?
Yes
Replace the Key board.
No
No
No
Replace the Main board.
Yes
Yes
Substitute a known
good Main board.
Does the projector
respond to the key pressed?
No
Replace the Key board.
6-8
Chapter 6
Problem resolved.
Problem resolved.
Yes
Replace the Main board.